usr.bin/window/cmd.c

   1 /*      @(#)cmd.c       8.1 (Berkeley) 6/6/93   */
   2 /*      $NetBSD: cmd.c,v 1.8 2003/08/07 11:17:21 agc Exp $      */
   3
   4 /*
   5  * Copyright (c) 1983, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * Edward Wang at The University of California, Berkeley.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions and the following disclaimer.
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in the
  18  *    documentation and/or other materials provided with the distribution.
  19  * 3. Neither the name of the University nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include <unistd.h>
  37 #include "defs.h"
  38 #include "char.h"
  39
  40 int     checkproc(struct ww *);
  41
  42 void
  43 docmd(void)
  44 {
  45         int c;
  46         struct ww *w;
  47         char out = 0;
  48
  49         while (!out && !quit) {
  50                 if ((c = wwgetc()) < 0) {
  51                         if (terse)
  52                                 wwsetcursor(0, 0);
  53                         else {
  54                                 wwputs("Command: ", cmdwin);
  55                                 wwcurtowin(cmdwin);
  56                         }
  57                         do
  58                                 wwiomux();
  59                         while ((c = wwgetc()) < 0);
  60                 }
  61                 if (!terse)
  62                         wwputc('\n', cmdwin);
  63                 switch (c) {
  64                 default:
  65                         if (c != escapec)
  66                                 break;
  67                         /* FALLTHROUGH */
  68                 case 'h': case 'j': case 'k': case 'l':
  69                 case 'y': case 'p':
  70                 case ctrl('y'):
  71                 case ctrl('e'):
  72                 case ctrl('u'):
  73                 case ctrl('d'):
  74                 case ctrl('b'):
  75                 case ctrl('f'):
  76                 case ctrl('s'):
  77                 case ctrl('q'):
  78                 case ctrl('['):
  79                         if (selwin == 0) {
  80                                 error("No window.");
  81                                 continue;
  82                         }
  83                 }
  84                 switch (c) {
  85                 case '1': case '2': case '3': case '4': case '5':
  86                 case '6': case '7': case '8': case '9':
  87                         if ((w = window[c - '1']) == NULL) {
  88                                 error("%c: No such window.", c);
  89                                 break;
  90                         }
  91                         setselwin(w);
  92                         if (checkproc(selwin) >= 0)
  93                                  out = 1;
  94                         break;
  95                 case '%':
  96                         if ((w = getwin()) != NULL)
  97                                 setselwin(w);
  98                         break;
  99                 case ctrl('^'):
 100                         if (lastselwin != 0) {
 101                                 setselwin(lastselwin);
 102                                 if (checkproc(selwin) >= 0)
 103                                         out = 1;
 104                         } else
 105                                 error("No previous window.");
 106                         break;
 107                 case 'c':
 108                         if ((w = getwin()) != NULL)
 109                                 closewin(w);
 110                         break;
 111                 case 'w':
 112                         c_window();
 113                         break;
 114                 case 'm':
 115                         if ((w = getwin()) != NULL)
 116                                 c_move(w);
 117                         break;
 118                 case 'M':
 119                         if ((w = getwin()) != NULL)
 120                                 movewin(w, w->ww_alt.t, w->ww_alt.l);
 121                         break;
 122                 case 's':
 123                         if ((w = getwin()) != NULL)
 124                                 c_size(w);
 125                         break;
 126                 case 'S':
 127                         if ((w = getwin()) != NULL)
 128                                 sizewin(w, w->ww_alt.nr, w->ww_alt.nc);
 129                         break;
 130                 case 'y':
 131                         c_yank();
 132                         break;
 133                 case 'p':
 134                         c_put();
 135                         break;
 136                 case ':':
 137                         c_colon();
 138                         break;
 139                 case 'h':
 140                         (void) wwwrite(selwin, "\b", 1);
 141                         break;
 142                 case 'j':
 143                         (void) wwwrite(selwin, "\n", 1);
 144                         break;
 145                 case 'k':
 146                         (void) wwwrite(selwin, "\033A", 2);
 147                         break;
 148                 case 'l':
 149                         (void) wwwrite(selwin, "\033C", 2);
 150                         break;
 151                 case ctrl('e'):
 152                         wwscroll(selwin, 1);
 153                         break;
 154                 case ctrl('y'):
 155                         wwscroll(selwin, -1);
 156                         break;
 157                 case ctrl('d'):
 158                         wwscroll(selwin, selwin->ww_w.nr / 2);
 159                         break;
 160                 case ctrl('u'):
 161                         wwscroll(selwin, - selwin->ww_w.nr / 2);
 162                         break;
 163                 case ctrl('f'):
 164                         wwscroll(selwin, selwin->ww_w.nr);
 165                         break;
 166                 case ctrl('b'):
 167                         wwscroll(selwin, - selwin->ww_w.nr);
 168                         break;
 169                 case ctrl('s'):
 170                         stopwin(selwin);
 171                         break;
 172                 case ctrl('q'):
 173                         startwin(selwin);
 174                         break;
 175                 case ctrl('l'):
 176                         wwredraw();
 177                         break;
 178                 case '?':
 179                         c_help();
 180                         break;
 181                 case ctrl('['):
 182                         if (checkproc(selwin) >= 0)
 183                                 out = 1;
 184                         break;
 185                 case ctrl('z'):
 186                         wwsuspend();
 187                         break;
 188                 case 'q':
 189                         c_quit();
 190                         break;
 191                 /* debugging stuff */
 192                 case '&':
 193                         if (debug) {
 194                                 c_debug();
 195                                 break;
 196                         }
 197                         /* FALLTHROUGH */
 198                 default:
 199                         if (c == escapec) {
 200                                 if (checkproc(selwin) >= 0) {
 201                                         (void) write(selwin->ww_pty,
 202                                                 &escapec, 1);
 203                                         out = 1;
 204                                 }
 205                         } else {
 206                                 if (!terse)
 207                                         wwbell();
 208                                 error("Type ? for help.");
 209                         }
 210                 }
 211         }
 212         if (!quit)
 213                 setcmd(0);
 214 }
 215
 216 struct ww *
 217 getwin(void)
 218 {
 219         int c;
 220         struct ww *w = NULL;
 221
 222         if (!terse)
 223                 wwputs("Which window? ", cmdwin);
 224         wwcurtowin(cmdwin);
 225         while ((c = wwgetc()) < 0)
 226                 wwiomux();
 227         if (debug && c == 'c')
 228                 w = cmdwin;
 229         else if (debug && c == 'f')
 230                 w = framewin;
 231         else if (debug && c == 'b')
 232                 w = boxwin;
 233         else if (c >= '1' && c < NWINDOW + '1')
 234                 w = window[c - '1'];
 235         else if (c == '+')
 236                 w = selwin;
 237         else if (c == '-')
 238                 w = lastselwin;
 239         if (w == NULL)
 240                 wwbell();
 241         if (!terse)
 242                 wwputc('\n', cmdwin);
 243         return w;
 244 }
 245
 246 int
 247 checkproc(struct ww *w)
 248 {
 249         if (w->ww_state != WWS_HASPROC) {
 250                 error("No process in window.");
 251                 return -1;
 252         }
 253         return 0;
 254 }
 255
 256 void
 257 setcmd(char new)
 258 {
 259         if (new && !incmd) {
 260                 if (!terse)
 261                         wwadd(cmdwin, &wwhead);
 262                 if (selwin != 0)
 263                         wwcursor(selwin, 1);
 264                 wwcurwin = 0;
 265         } else if (!new && incmd) {
 266                 if (!terse) {
 267                         wwdelete(cmdwin);
 268                         reframe();
 269                 }
 270                 if (selwin != 0)
 271                         wwcursor(selwin, 0);
 272                 wwcurwin = selwin;
 273         }
 274         incmd = new;
 275 }
 276
 277 void
 278 setterse(char new)
 279 {
 280         if (incmd) {
 281                 if (new && !terse) {
 282                         wwdelete(cmdwin);
 283                         reframe();
 284                 } else if (!new && terse)
 285                         wwadd(cmdwin, &wwhead);
 286         }
 287         terse = new;
 288 }
 289
 290 /*
 291  * Set the current window.
 292  */
 293 void
 294 setselwin(struct ww *w)
 295 {
 296         if (selwin == w)
 297                 return;
 298         if (selwin != 0)
 299                 lastselwin = selwin;
 300         if ((selwin = w) != NULL)
 301                 front(selwin, 1);
 302 }